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Outline
In order to solve the problems of long development cycle, high design cost and easy fatigue damage of automotive bushings, the stiffness calculation and fatigue simulation simulation of the rear bushings of front suspension lower swing arm were carried out based on finite element software. Ogden, Mullins, and Thomas model parameters and initial crack size are obtained through the mechanical property test of rubber materials, and then the bushing is subjected to stiffness calculation and fatigue life simulation. Comparing the results of the bench test, it is found that the error of all-directional stiffness and fatigue life is less than 8%, and the location of the node where fatigue failure occurs is the same as the fatigue hotspot obtained from the calculation, which is similar to the location of the fatigue failure in the bench fatigue test, thus verifying the feasibility of the simulation.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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